chore: update workflow to generate PRs with correct commit prefix and…

… use Cloud Java bot (#6117)

* chore: update workflow to generate PRs with correct commit prefix

* update workflow to use cloud java bot

.github/workflows/update-readme-table.yaml

@@ -30,15 +30,15 @@ jobs:
 
     - name: Commit and push changes
       run: |
-        git config --global user.name "GitHub Actions Bot"
-        git config --global user.email "github-actions[bot]@users.noreply.github.com"
+        git config --global user.name "Cloud Java Bot"
+        git config --global user.email "cloud-java-bot@google.com"
         git add README.md
-        git commit -m "Update README with release table"
+        git commit -m "chore: update README with release table"
         git checkout -b update-readme
         git push origin update-readme
 
     - name: Create Pull Request
       run: |
-        gh pr create --base main --head update-readme --title "Update README with release table" --body "Updating README with the table of artifacts associated with the latest libraries-bom release"
+        gh pr create --base main --head update-readme --title "chore: Update README with release table" --body "Updating README with the table of artifacts associated with the latest libraries-bom release"
       env:
-        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        GITHUB_TOKEN: ${{ secrets.CLOUD_JAVA_BOT_GITHUB_TOKEN }}